usr.sbin/accton/accton.c

   1 /*
   2  * Copyright (c) 1988, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#) Copyright (c) 1988, 1993 The Regents of the University of California.  All rights reserved.
  30  * @(#)accton.c 8.1 (Berkeley) 6/6/93
  31  * $FreeBSD: src/usr.sbin/accton/accton.c,v 1.5 1999/08/28 01:15:10 peter Exp $
  32  * $DragonFly: src/usr.sbin/accton/accton.c,v 1.7 2004/12/25 14:20:09 swildner Exp $
  33  */
  34
  35 #include <sys/types.h>
  36
  37 #include <err.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41
  42 static void usage(void);
  43
  44 int
  45 main(int argc, char **argv)
  46 {
  47         int ch;
  48
  49         while ((ch = getopt(argc, argv, "")) != -1)
  50                 switch(ch) {
  51                 default:
  52                         usage();
  53                 }
  54         argc -= optind;
  55         argv += optind;
  56
  57         switch(argc) {
  58         case 0:
  59                 if (acct(NULL) < 0)
  60                         err(1, NULL);
  61                 break;
  62         case 1:
  63                 if (acct(*argv) < 0)
  64                         err(1, "%s", *argv);
  65                 break;
  66         default:
  67                 usage();
  68         }
  69         exit(0);
  70 }
  71
  72 static void
  73 usage(void)
  74 {
  75         fprintf(stderr, "usage: accton [file]\n");
  76         exit(1);
  77 }